Air intake mechanism for air source heat pumps

Abstract

This invention discloses an air intake mechanism for an air source heat pump, belonging to the field of air source heat pump technology. The invention includes an air intake pipe installed on the side of the air source heat pump body. A support column is installed inside the port of the air intake pipe, and a pressure plate is installed at the end of the support column facing the air source heat pump body. A dust filter plate is provided on the side of the pressure plate, and the edge area of ​​the dust filter plate forms an air intake channel. A scraper is fixed circumferentially to the pressure plate. A guide block fixed circumferentially to the dust filter plate passes through a movable groove on the air intake pipe and is fixed to a power gear ring. A transmission gear is provided above the power gear ring, and the transmission gear is fixed to the output end of a servo motor. This air intake mechanism for an air source heat pump can clean its own dust by rotating the filter plate, and simultaneously utilizes the static electricity generated during friction to further adsorb dust in the air, improving the dust removal effect.

Description

Technical Field

[0001] This invention relates to the field of air source heat pump technology, specifically to an air intake mechanism for an air source heat pump. Background Technology

[0002] A dual-mode air source heat pump refers to an air source heat pump system with two or more operating conditions. Its basic principle is based on the reverse Carnot cycle. Through the work of the compressor, the low-level heat in the air is converted into energy through the heat absorption and release of the refrigerant, realizing the transfer and upgrading of energy utilization. Dual-mode air source heat pumps can flexibly switch operating modes according to different environmental conditions. As a highly efficient and environmentally friendly heating and cooling technology, dual-mode air source heat pumps provide users with the required heating or cooling effects. The air intake mechanism is the interface for heat exchange between the heat pump system and the outside air. The air intake mechanism can ensure that the heat pump system draws in sufficient and high-quality air, thereby improving heat exchange efficiency, reducing energy consumption, and extending the service life of the equipment.

[0003] For example, Chinese patent CN218511230U, entitled "Air Source Heat Pump Intake Structure," published on February 21, 2023, describes an intake structure located inside a heat pump box. The intake structure includes an intake pipe and a filter assembly, with the filter assembly detachably mounted on the intake pipe. The filter assembly comprises a cover plate and a ring plate, which are sequentially inserted into the intake pipe. The cover plate is spirally connected to the intake pipe, and an inner ring with a filter element is rotatably mounted within the ring plate. The aforementioned prior art has the following technical problems:

[0004] When the existing air intake structure is in use, the outside air enters the duct and is filtered by the internal filter to remove dust. However, it is not convenient to automatically clean the dust attached to the filter. When too much dust accumulates, it can easily clog the mesh of the filter. At the same time, when filtering dust, it can only remove dust in a single way through the filter, resulting in poor overall dust filtration effect.

[0005] Therefore, we propose an air intake mechanism for air source heat pumps to address the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide an air intake mechanism for an air source heat pump, in order to solve the problems mentioned in the background art. In the current air intake structure on the market, after the outside air enters the pipe, it filters the air dust through the internal filter screen. However, when filtering dust, it is not convenient to automatically clean the dust attached to the filter screen. When too much dust accumulates, it is easy to clog the mesh of the filter screen. At the same time, when filtering dust, it is often only possible to filter dust through the filter screen in a single way, resulting in poor overall dust filtration effect.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an air intake mechanism for an air source heat pump, comprising an air intake pipe installed on the side of the air source heat pump body, a support column installed inside the port of the air intake pipe, and a pressure plate installed at the end of the support column facing the air source heat pump body, a dust filter plate provided on the side of the pressure plate, and the edge area of ​​the dust filter plate being an air intake channel, a scraper fixed circumferentially on the pressure plate, a guide block fixed circumferentially on the dust filter plate passing through a movable groove on the air intake pipe and fixed to a power gear ring, and a transmission gear provided above the power gear ring, the transmission gear being fixed on the output end of a servo motor, and the servo motor being fixed on the side of the air source heat pump body.

[0008] Preferably, the longitudinal section of the pressure plate is set as an annular structure, and the middle of the pressure plate and the dust filter plate are attached to each other, and the dust filter plate can rotate in the air inlet pipe.

[0009] By adopting the above technical solution, through the mutual adhesion of the pressure plate and the dust filter plate, it is possible for outside air to enter the interior of the air source heat pump body through the air intake channel on the edge of the dust filter plate when air is drawn in under negative pressure.

[0010] Preferably, there are multiple scraper strips evenly distributed around the pressure plate, and the scraper strips are in contact with the edges of the dust filter plate.

[0011] By adopting the above technical solution, when the dust filter plate rotates inside the air intake pipe, the dust adhering to the air intake channel at the edge of the dust filter plate can be scraped off by the scraper.

[0012] Preferably, the dust filter plate and the pressure plate at the end of the support column are provided with flow guide holes in the middle area, and the flow guide holes on the dust filter plate and the pressure plate are aligned with each other in the initial state. The support column is provided with an electrostatic adsorption component inside.

[0013] By adopting the above technical solution, the guide holes on the dust filter plate and the pressure plate are aligned with each other, which makes it easy to control the movement of the electrostatic adsorption component by using the negative pressure during air intake.

[0014] Preferably, the electrostatic adsorption component includes a movable plate disposed inside the support column and an adjustment frame fixed in the middle of the movable plate. The movable plate is connected to the support column via an auxiliary spring. A guide gear is fixed to the edge of the adjustment frame, and a linkage gear is meshed with the inner side of the guide gear. The linkage gear is fixed on the central rotating shaft of the bearing seat. A snap-fit ​​block is disposed inside the bearing seat. The snap-fit ​​block is connected to the bearing seat via a built-in spring. A first magnetic block is fixed to one end of the snap-fit ​​block extending out of the bearing seat, and a second magnetic block is disposed on the side of the first magnetic block. The second magnetic block is fixed to the pressure plate. A rubber plate is fixed to the snap-fit ​​block, and a nylon plate is disposed on the side of the rubber plate. The nylon plate is fixed to the bearing seat.

[0015] By adopting the above technical solution, the auxiliary spring can be used to enable the moving plate to return to its original position after moving inside the support column.

[0016] Preferably, the movable plate is slidable inside the support column, and the adjusting frame fixed in the middle of the movable plate has multiple guide gears evenly distributed around its circumference, and each guide gear is meshed with a linkage gear inside.

[0017] By adopting the above technical solution, the movement of the moving plate inside the support column can drive the adjusting frame to move synchronously, and the movement of the adjusting frame and the guide gear frame can cause the meshing linkage gear to rotate.

[0018] Preferably, the snap-fit ​​block forms an elastic telescopic structure through a built-in spring and a support seat, and the first magnetic block and the second magnetic block at the end of the snap-fit ​​block have the same magnetism.

[0019] By adopting the above technical solution, the first magnetic block and the second magnetic block approach each other, thereby using repulsive magnetic force to make the snap-fit ​​block move inside the carrier.

[0020] Preferably, the bearing seat is rotatable on the support column via a central pivot, and the central part of the bearing seat is a hollow structure.

[0021] By adopting the above technical solution, the rotation of the bearing seat on the support column can drive the nylon plate on it to rotate synchronously.

[0022] Preferably, the rubber sheet and the nylon sheet are initially distributed in parallel and are bonded to each other.

[0023] By adopting the above technical solution, the rubber sheet can be moved synchronously by the movement of the snap-fit ​​block. The reciprocating movement of the rubber sheet can generate static electricity by friction with the nylon sheet.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the air intake mechanism for the air source heat pump can clean its own dust by rotating the filter plate, and at the same time, it can further adsorb dust in the air by utilizing the static electricity generated during the friction process, thereby improving the dust filtration effect.

[0025] 1. Equipped with scraper strips, the reciprocating rotation of the transmission gears enables the power gear ring to drive the dust filter plate to rotate synchronously via the guide block. During the rotation of the dust filter plate, the surface of the dust filter plate contacts the scraper strips on the side of the pressure plate, thereby automatically cleaning the dust adhering to the air intake channel at the edge of the dust filter plate. By filtering the intake air of the dual-condition air source heat pump, dust and other impurities in the air are prevented from entering the machine body, avoiding the accumulation of impurities on key components such as the evaporator and condenser of the heat pump, improving the heat exchange efficiency of the dual-condition air source heat pump, and also preventing excessive impurities from causing wear to internal parts during the operation of the heat pump, thus shortening the service life of the heat pump;

[0026] 2. Equipped with a nylon plate, when the air intake pipe draws in outside air through negative pressure, the negative pressure can pass through the guide holes to generate suction on the moving plate, causing the moving plate to move inside the support column. When the dust filter plate rotates, the guide holes on it and the guide holes on the pressure plate become misaligned, and the moving plate loses the negative pressure and resets under the action of the auxiliary spring. Thus, the movement of the moving plate, the adjusting frame, and the guide gear frame can cause the meshing linkage gear to drive the carrier to rotate. The change in distance between the first and second magnetic blocks after the carrier rotates can cause the rubber plate on the snap block to reciprocate and rub against the nylon plate. The friction between the two generates static electricity, which adsorbs the dust in the air. At the same time, the static electricity can also adsorb the dust that falls off the dust filter plate cleaned by the scraper.

[0027] 3. Equipped with a nylon plate, the rotation of the support base on the support column not only generates static electricity through reciprocating friction between the rubber plate and the nylon plate, but also allows the nylon plate to rotate synchronously by the rotation of the support base, thereby increasing its dust collection range. Attached Figure Description

[0028] Figure 1 This is a frontal perspective view of the present invention;

[0029] Figure 2 This is a schematic diagram of the intake pipe and power gear ring structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the air intake pipe and dust filter plate structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the guide block and movable groove structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the dust filter plate and power gear ring structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the pressure plate and dust filter plate structure of the present invention;

[0034] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0035] Figure 8 This is a schematic diagram of the guide gear frame and linkage gear structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the rubber sheet and nylon sheet structure of the present invention.

[0037] In the diagram: 1. Intake pipe; 2. Air source heat pump body; 3. Support column; 4. Pressure plate; 5. Dust filter plate; 6. Scraper; 7. Guide block; 8. Movable groove; 9. Power gear ring; 10. Transmission gear; 11. Servo motor; 12. Guide hole; 13. Electrostatic adsorption component; 131. Moving plate; 132. Adjustment frame; 133. Auxiliary spring; 134. Guide gear frame; 135. Linkage gear; 136. Bearing seat; 137. Snap-fit ​​block; 138. Built-in spring; 139. First magnetic block; 1310. Second magnetic block; 1311. Rubber plate; 1312. Nylon plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-9In existing air intake structures, outside air enters the duct and is filtered for dust by an internal filter. However, it is not convenient to automatically clean the dust adhering to the filter. When too much dust accumulates, it easily clogs the mesh of the filter. To solve this technical problem, this embodiment discloses the following technical content: an air intake mechanism for an air source heat pump, including an air intake pipe 1 installed on the side of the air source heat pump body 2, a support column 3 installed inside the port of the air intake pipe 1, and a pressure plate 4 installed at the end of the support column 3 facing the air source heat pump body 2. A dust filter plate 5 is provided on the side of the pressure plate 4. Furthermore, the edge area of ​​the dust filter plate 5 is an air intake channel, and the circumferential scraper 6 is fixed on the pressure plate 4. The guide block 7 fixed circumferentially on the dust filter plate 5 passes through the movable groove 8 on the air intake pipe 1 and is fixed to the power gear ring 9. A transmission gear 10 is provided above the power gear ring 9. The transmission gear 10 is fixed on the output end of the servo motor 11, and the servo motor 11 is fixed on the side of the air source heat pump body 2. The longitudinal section of the pressure plate 4 is set as an annular structure, and the middle of the pressure plate 4 and the dust filter plate 5 are in close contact with each other. The dust filter plate 5 can rotate in the air intake pipe 1. Multiple scraper 6 are evenly distributed around the circumference of the pressure plate 4, and the scraper 6 is in close contact with the edge of the dust filter plate 5.

[0040] When the air source heat pump body 2 is working, it generates negative pressure through an internal fan, thereby drawing in outside air through the air intake pipe 1. The airflow entering through the air intake pipe 1 enters the interior of the air source heat pump body 2 through the air intake channel on the edge of the dust filter plate 5, and the dust in the air is filtered by the dust filter plate 5. During the air intake process, the servo motor 11 is turned on, which causes the transmission gear 10 to rotate back and forth. The reciprocating rotation of the transmission gear 10 drives the meshing power gear ring 9 to rotate. After the power gear ring 9 rotates, it can drive the dust filter plate 5 to rotate synchronously through the guide block 7. The air intake channel on the edge of the dust filter plate 5 is in close contact with the scraper 6. Therefore, when the dust filter plate 5 rotates back and forth, the dust attached to the surface of its air intake channel will be scraped off by the scraper 6, thereby ensuring the flow of the air intake channel on the dust filter plate 5 and preventing the subsequent air intake efficiency from being affected by the blockage of the mesh.

[0041] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. When filtering dust, it is often only possible to remove dust through a single method using a filter screen, resulting in poor overall dust filtration. To further solve this technical problem, the following technical content is disclosed in this example: Guide holes 12 are provided in the middle area of ​​the dust filter plate 5 and the end pressure plate 4 of the support column 3, and the guide holes 12 on the dust filter plate 5 and the pressure plate 4 are initially aligned with each other. An electrostatic adsorption part is provided inside the support column 3. Component 13, the electrostatic adsorption component 13 includes a movable plate 131 disposed inside the support column 3 and an adjusting frame 132 fixed in the middle of the movable plate 131. The movable plate 131 is connected to the support column 3 via an auxiliary spring 133. A guide gear 134 is fixed to the edge of the adjusting frame 132, and a linkage gear 135 is meshed with the inner side of the guide gear 134. The linkage gear 135 is fixed on the central rotating shaft of the bearing seat 136, and a locking block 137 is disposed inside the bearing seat 136. The locking block 137 is connected to the bearing seat via an internal spring 138. 136 are interconnected. A first magnetic block 139 is fixed to one end of the snap-fit ​​block 137 extending out of the bearing seat 136, and a second magnetic block 1310 is provided on the side of the first magnetic block 139. The second magnetic block 1310 is fixed on the pressure plate 4. A rubber plate 1311 is fixed on the snap-fit ​​block 137, and a nylon plate 1312 is provided on the side of the rubber plate 1311. The nylon plate 1312 is fixed on the bearing seat 136. The movable plate 131 can slide inside the support column 3, and the adjusting frame 132 fixed in the middle of the movable plate 131 has multiple guide teeth evenly distributed around its circumference. The frame 134 is equipped with a linkage gear 135 inside each guide gear frame 134. The snap block 137 forms an elastic telescopic structure through the built-in spring 138 and the support seat 136. The first magnetic block 139 and the second magnetic block 1310 at the end of the snap block 137 have the same magnetism. The support seat 136 can rotate on the support column 3 through the central pivot. The central part of the support seat 136 is a hollow structure. The rubber plate 1311 and the nylon plate 1312 are parallel in the initial state and are in contact with each other.

[0042] When the fan inside the air source heat pump body 2 generates negative pressure and draws in air through the intake pipe 1, the guide holes 12 on the dust filter plate 5 and the pressure plate 4 initially overlap. Therefore, the negative pressure can act on the moving plate 131 inside the support column 3, causing the moving plate 131 to move towards the air source heat pump body 2. After the dust filter plate 5 rotates, the guide holes 12 on the dust filter plate 5 and the guide holes 12 on the pressure plate 4 become misaligned. The moving plate 131 is no longer subject to negative pressure and resets under the action of the auxiliary spring 133. This achieves the function of the moving plate. The reciprocating movement of the moving plate 131 enables the guide gear 134 to move synchronously via the adjusting frame 132. This reciprocating movement of the guide gear 134 causes the meshing linkage gear 135 to rotate. Since the linkage gear 135 is fixed to the central shaft of the bearing seat 136, its rotation drives the bearing seat 136 to rotate synchronously. The bearing seat 136 then rotates, causing the first magnetic block 139 at the end of its inner locking block 137 to engage with the pressure plate 4. When the second magnetic block 1310 approaches each other, the repulsive magnetic force between the first magnetic block 139 and the second magnetic block 1310 can push the locking block 137 to move inside the support seat 136. When the support seat 136 rotates, the first magnetic block 139 and the second magnetic block 1310 at the end of the locking block 137 move away from each other, and the locking block 137 returns to its original position under the action of the built-in spring 138. This allows the locking block 137 to reciprocate. Through the reciprocating movement of the locking block 137, the rubber plate 1311 on it can be pressed against the support seat 136. The nylon plates 1312 rub against each other, and static electricity is generated by the friction between the rubber plate 1311 and the nylon plate 1312. The static electricity generated by the friction can attract dust in the air. The nylon plate 1312 is located on the side of the dust filter plate 5. After the scraper 6 scrapes the dust attached to the dust filter plate 5, the scraped dust can also be attracted by the statically charged nylon plate 1312. The nylon plate 1312 rotates on the support 136. The rotation of the nylon plate 1312 can also increase its electrostatic dust collection range.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air intake mechanism for an air source heat pump, comprising an air intake pipe (1) mounted on the side of the body (2) of the air source heat pump, characterized in that: A support column (3) is installed inside the port of the air intake pipe (1), and a pressure plate (4) is installed at one end of the support column (3) facing the air source heat pump body (2). A dust filter plate (5) is provided on the side of the pressure plate (4), and the edge area of ​​the dust filter plate (5) is the air intake channel. A scraper (6) is fixed around the pressure plate (4). A guide block (7) fixed around the dust filter plate (5) passes through the movable groove (8) opened on the air intake pipe (1) and is fixed to the power gear ring (9). A transmission gear (10) is provided above the power gear ring (9). The transmission gear (10) is fixed on the output end of the servo motor (11), and the servo motor (11) is fixed on the side of the air source heat pump body (2). The longitudinal section of the pressure plate (4) is set as an annular structure, and the middle of the pressure plate (4) and the dust filter plate (5) are attached to each other, and the dust filter plate (5) can rotate in the air inlet pipe (1); The dust filter plate (5) and the pressure plate (4) at the end of the support column (3) are provided with flow guide holes (12), and the flow guide holes (12) on the dust filter plate (5) and the pressure plate (4) are aligned with each other in the initial state. The support column (3) is provided with an electrostatic adsorption component (13). The electrostatic adsorption component (13) includes a movable plate (131) disposed inside the support column (3) and an adjustment frame (132) fixed in the middle of the movable plate (131). The movable plate (131) is connected to the support column (3) by an auxiliary spring (133). A guide gear (134) is fixed to the edge of the adjustment frame (132), and a linkage gear (135) is meshed with the inner side of the guide gear (134). The linkage gear (135) is fixed on the central rotating shaft of the bearing seat (136), and a snap-fit ​​block (13) is provided inside the bearing seat (136). 7) The snap-fit ​​block (137) is connected to the support seat (136) by the built-in spring (138). A first magnetic block (139) is fixed at one end of the snap-fit ​​block (137) extending out of the support seat (136), and a second magnetic block (1310) is provided on the side of the first magnetic block (139). The second magnetic block (1310) is fixed on the pressure plate (4). A rubber plate (1311) is fixed on the snap-fit ​​block (137), and a nylon plate (1312) is provided on the side of the rubber plate (1311). The nylon plate (1312) is fixed on the support seat (136).

2. The air intake mechanism for an air source heat pump of claim 1, wherein: The scraper (6) is evenly distributed around the pressure plate (4), and the scraper (6) is in contact with the edge of the dust filter plate (5).

3. The air intake mechanism for an air source heat pump of claim 1, wherein: The movable plate (131) can slide inside the support column (3), and the adjustment frame (132) fixed in the middle of the movable plate (131) has multiple guide gears (134) evenly distributed around its circumference, and each guide gear (134) is meshed with a linkage gear (135).

4. The air intake mechanism for an air source heat pump according to claim 1, characterized in that: The snap-fit ​​block (137) forms an elastic telescopic structure through the built-in spring (138) and the support seat (136), and the first magnetic block (139) at the end of the snap-fit ​​block (137) has the same magnetism as the second magnetic block (1310).

5. The air intake mechanism for an air source heat pump according to claim 1, characterized in that: The bearing seat (136) can rotate on the support column (3) through the central pivot, and the central part of the bearing seat (136) is a hollow structure.

6. The air intake mechanism for an air source heat pump according to claim 1, characterized in that: The rubber sheet (1311) and the nylon sheet (1312) are initially distributed in parallel and are in contact with each other.

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